QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Villa Park, CA

No earthquake was likely felt in Villa Park in the 24 hours to 4:04 am PST (12:04 UTC). The last one was M 1.8, 8 km (5 mi) NE, at 9:16 pm PST on 3 November 2026, estimated intensity II (weak) in town. Every earthquake near Villa Park

This page: a magnitude 1.8 earthquake was recorded 4 km (2 mi) northwest of Villa Park, CA, at 6:32 pm PDT on 12 June 2021 (01:32 UTC), 5.0 km deep.

USGS: 4km NW of Villa Park, CA

5 km (3 mi) S of Placentia, CA · 56 km (35 mi) ESE of Los Angeles, CA

6:32 pm PDT, Jun 12, 2021 · · 5.0 km deep · released about 13 lb of TNT

Every earthquake near Villa Park Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Orange County 19 kmLos Angeles County 56 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
6:32 pm PDT on 12 June 2021 ()
Where
4 km (2 mi) northwest of Villa Park, CA · earthquakes near Villa Park
Magnitude
M 1.8 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Orange County, 19 km SSE
Nearest mapped fault
Puente Hills blind thrust system, 7 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1737 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 12 km (7 mi) from the epicentre. In Villa Park, 4 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Placentia 5 km, intensity II · Orange 5 km, intensity II · Anaheim 6 km, intensity II · Yorba Linda 6 km, intensity II · Fullerton 8 km, intensity II · North Tustin 9 km, intensity II · Tustin 10 km, intensity II · Brea 10 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 13 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 810,000× the energy of this one
  3. Around the size people start to feel M 3.0 72× the energy of this one
  4. This earthquake M 1.8 about 13 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

The largest earthquake within 50 km since 2016 was M 4.5 on 2020-09-19 — about 15,000 times the energy of this one.

Before 2016, the USGS record lists 15 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 The 1933 Long Beach, California Earthquake · 27 km SSW of this epicentre
  2. 6.0 The 1910 Lake Elsinore, California Earthquake · 44 km ESE of this epicentre
  3. 5.9 The 1987 Whittier Narrows, California Earthquake · 33 km NW of this epicentre
  4. 5.5 The 1990 Upland, California Earthquake · 37 km NNE of this epicentre
  5. 5.4 5km S of Chino Hills, CA · 14 km NNE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 33.8365, -117.8445. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Orange County, CA 19 km (12 mi) SSE earthquakes near Orange County
Los Angeles County, CA 56 km (34 mi) NW earthquakes near Los Angeles County
Ventura County, CA 132 km (82 mi) WNW earthquakes near Ventura County
San Diego County, CA 134 km (83 mi) SE earthquakes near San Diego County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

49 earthquakes have been recorded within 50 km since this one.

  1. 4.3 2km E of Carson, CA
  2. 1.7 5km SSE of Home Gardens, CA
  3. 2.6 3km NNW of La Verne, CA
  4. 2.1 5km SSE of Home Gardens, CA
  5. 1.6 5km NNE of Fontana, CA
  6. 2.6 5km NNE of Fontana, CA
  7. 1.6 4km NE of Whittier, CA
  8. 1.7 2km NNW of Inglewood, CA
  9. 1.9 4km SE of Home Gardens, CA
  10. 1.7 4km SE of Home Gardens, CA
  11. 1.7 4km N of Fontana, CA
  12. 1.6 4km N of Fontana, CA
  13. 1.8 3km SSE of Garden Grove, CA
  14. 1.6 4km N of Rancho Cucamonga, CA
  15. 1.7 6km SSE of Home Gardens, CA

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.